The sisters-in-law will attend the women’s singles final of Wimbledon on Saturday to watch the Duchess of Sussex’s pal Serena Williams fight it out for the title. Kensington Palace has confirmed the appearance on Twitter.

The Duchess of Cambridge, @Wimbledon Patron, and The Duchess of Sussex will attend the Ladies' Singles Final on Saturday 14th July #Wimbledon

It won’t be the only Wimbledon outing for Kate, who will attend the men’s singles final with her husband, Prince William, on Sunday. Her family, including sister Pippa Middleton, have also made repeat appearances at this year’s event.

The duchess is a patron of the Grand Slam tournament, while her new in-law attended two games in 2016. Time to move on up to the royal box!